Yamaha 2004 YP400, Service Manual, Page: 122 / 417

3 - 43
CHK
ADJ
CHECKING THE FRONT FORK/
CHECKING THE TIRES
4. Check:
• front fork operation
Push down hard on the handlebar several
times and check if the front fork rebounds
smoothly.
Rough movement
→
Repair.
Refer to “FRONT FORK” in chapter 4.
EAS00165
CHECKING THE TIRES
The following procedure applies to both of the
tires.
1. Check:
• tire pressure
Out of specification
→
Regulate.
WARNING
_
• The tire pressure should only be checked
and regulated when the tire temperature
equals the ambient air temperature.
• The tire pressure and the suspension
must be adjusted according to the total
weight (including cargo, rider, passenger
and accessories) and the anticipated
riding speed.
• Operation of an overloaded scooter could
cause tire damage, an accident or an
injury.
NEVER OVERLOAD THE SCOOTER.
* Total weight of rider, passenger, cargo and
accessories
Basic weight
(with oil and a
full fuel tank)
210 kg (463 lb)
Maximum
load*
198 kg (437 lb)
Cold tire pres-
sure
Front Rear
Up to 90 kg
load*
200 kPa
(2.00 kgf/cm
2
,
29 psi)
250 kPa
(2.50 kgf/cm
2
,
36 psi)
90 kg ~ maxi-
mum load*
200 kPa
(2.00 kgf/cm
2
,
29 psi)
250 kPa
(2.50 kgf/cm
2
,
36 psi)
High-speed
riding
200 kPa
(2.00 kgf/cm
2
,
29 psi)
250 kPa
(2.50 kgf/cm
2
,
36 psi)